AFAccord
Well-Known Member
Re: Projekt G23
Compression will drop to 11.3 with the larger combustion chambers of the H22 head.
My tuner has a 13:1 compression D-series that he runs on 87 octane with no problems. It's all in the tune.
Wow you compression will be sky high if using the stock f23 rods. Should come close to 12-1:1 using those. Good luck with trying to stay on 91 octane.
Compression will drop to 11.3 with the larger combustion chambers of the H22 head.
My tuner has a 13:1 compression D-series that he runs on 87 octane with no problems. It's all in the tune.